DK163355B

DK163355B - STACK OF FILTER SHEETS OF PAPER

Info

Publication number: DK163355B
Application number: DK466983A
Authority: DK
Inventors: Fritz Himmelsbach
Original assignee: Himmelsbach Produktions Ag
Priority date: 1982-10-12
Filing date: 1983-10-11
Publication date: 1992-02-24
Also published as: DK466983D0; DE3237702C2; JPS605107A; DK163355C; EP0106294B1; EP0106294A1; ATE32422T1; DK466983A; DE3237702A1; AU2012083A; DE3375638D1; CA1214401A; US4595502A

Abstract

If a plurality of essentially circular sheets of filter paper are stacked in a pile, the individual sheets have a tendency to stick to each other rendering it difficult to remove the topmost sheet from the pile. To overcome this inconvenience, it is provided that adjacent sheets within the pile have a different contour, e.g. by providing every second sheet with a protruding tongue arranged at the circumferential edge thereof. All the intermediate sheets either do not have such tongue or are provided with a recess arranged anywhere along their circumferential edge.

Description

iin

DK 163355 BDK 163355 B

Opfindelsen angår en stabel af filterblade af papir med i hovedsagen cirkulær omkreds, f.eks. sådanne som anvendes i kaffemaskiner til brygning af kaffe.The invention relates to a stack of filter sheets of paper having substantially circular circumference, e.g. those used in coffee machines for brewing coffee.

Især ved kafTemaskiner, det være sig til brug i hjemmet 5 eller til erhvervsmæssig brug på restauranter, er der behov for filterindsatse, som for det meste har form af et enkelt, cirkelrundt filterpapirblad. Ofte er disse filterblade præget i en bestemt form, f.eks. kop- eller skålformet. Disse filterblade samles i stabler på f.eks.Especially for coffee machines, whether for home use 5 or for commercial use in restaurants, filter inserts are needed, which are mostly in the form of a single, circular filter paper blade. Often these filter blades are embossed in a particular shape, e.g. cup or bowl shaped. These filter blades are assembled in stacks of e.g.

10 50 eller 100 stk., og disse stabler dannes almindeligvis ved fremstillingen, dvs. direkte efter udstansningen af de enkelte blade. Formgivningen til den nævnte kopeller skålform sker da normalt stabelvis.10 50 or 100 pieces, and these stacks are generally formed during manufacture, ie. directly after the cutting of the individual leaves. The molding for the bowl shape of the said coupler is then usually stacked.

Ved udstansningen af filterbladene sammenpresses disse 15 relativt stærkt ved de ydre konturer. Herved opstår der ved udtagelsen af et enkelt filterblad fra stablen vanskeligheder, idet de enkelte blade klæber til hinanden og kun kan adskilles fra hinanden med besvær. Disse vanskeligheder optræder især ved stabelvis formgivne 20 filterblade, da formningen finder sted under betydeligt tryk, hvilket fremmer de enkelte blades klæbning til hinanden.In punching the filter blades, these 15 are compressed relatively strongly by the outer contours. This causes difficulties when removing a single filter blade from the stack, as the individual leaves adhere to each other and can only be separated from each other with difficulty. These difficulties occur especially with stackable shaped filter blades, since molding takes place under considerable pressure, which promotes the adhesion of the individual blades to each other.

Formålet med opfindelsen er derfor at afhjælpe disse problemer og at angive en stabel af den indledningsvis 25 nævnte art, ved hvilken et enkelt filterblad kan aftages uden vanskeligheder. Det skal endvidere sikres, at stablen kan dannes lige så let under eller efter fremstillingen som tidligere, uden at der dertil kræves yderligere arbej dstrin.The object of the invention is therefore to solve these problems and to provide a stack of the kind mentioned in the preamble, by which a single filter blade can be removed without difficulty. Furthermore, it must be ensured that the stack can be formed just as easily during or after manufacture as before, without requiring additional work steps.

30 Der er ganske vist foreslået anordninger, som skal lette opløftningen af det øverste blad i en stabel. For eksempel er det i den franske patentansøgning 2 210 370 foreslået,30 Devices have been proposed which are intended to facilitate the lifting of the top blade into a stack. For example, it is proposed in French patent application 2 210 370,

DK 163355BDK 163355B

2 at bladgrupper eller enkelte blade anbringes forskudt i forhold til hinanden i en stabel, f.eks..drejet i forhold til hinanden omkring en midterakse. Hvert af 5 bladene i stablen har samme form. Bortset fra at dette forslag er 'vanskeligt at anvende i forbindelse med runde filterblade, vil man indse, at det egentlige stablings-forløb kompliceres i betydelig grad og ikke kan udføres uden yderligere apparatmæssige omkostninger. Hertil 10 kommer, at den på denne måde dannede stabel har en kompliceret ydre form og næppe er velegnet til emballering.2 that leaf groups or individual leaves are placed offset relative to each other in a stack, for example, rotated relative to each other around a center axis. Each of the 5 leaves in the stack has the same shape. Except that this proposal is difficult to use in connection with round filter blades, it will be appreciated that the actual stacking process is considerably complicated and cannot be carried out without additional apparatus costs. In addition, the stack thus formed has a complicated outer shape and is hardly suitable for packaging.

I US-A-2 149 499 beskrives en stabel af papirblade, hvor alle bladene er udformet med henholdsvis en indskæring og en tunge med undtagelse af derimellem liggende 15 carbonpapirark, som er anbragt for at lette fjernelsen af de sidstnævnte. En sådan anordning kan næppe eller kun i yderst ringe grad sammenlignes med især runde filterblade af den omhandlede art.US-A-2,149,499 discloses a stack of paper sheets wherein all the leaves are formed with a notch and a tongue, respectively, with the exception of interspersed carbon paper sheets which are arranged to facilitate the removal of the latter. Such a device can hardly or very little be compared with especially round filter blades of the kind in question.

Den foreliggende opfindelse løser de ovennævnte problemer 20 på enkelt måde ved de i patentkravet angivne ejendommeligheder .The present invention solves the above-mentioned problems 20 in a simple manner by the features of the claim.

Opfindelsen forklares nærmere ved den følgende beskrivelse af et udførelseseksempel for stablen ifølge opfindelsen under henvisning til tegningen, hvor 25 fig. 1 viser et rundt filterpapirblad med en periferisk tunge, fig. 2 viser et rundt filterpapirblad med en indskæring i periferien, fig. 3 viser en stabel dannet af runde filterpapirblade, 30 ogThe invention is further explained by the following description of an embodiment of the stack according to the invention with reference to the drawing, in which FIG. 1 shows a circular filter paper blade with a peripheral tongue; FIG. 2 shows a circular filter paper sheet with a circumferential cut; FIG. 3 shows a stack formed of round filter paper sheets, 30 and

DK 163355 BDK 163355 B

3 fig. 3 a viser et forstørret udsnit fra fig. 3.3 FIG. 3a shows an enlarged section of FIG. Third

I fig. 1 er vist et enkelt filterpapirblad, der er betegnet med 1 og er på et bestemt sted på periferien udformet med en udragende tunge 2. Bladet består af det sædvanlige, 5 til filterpapir anvendte materiale og har en cirkulær f orm.In FIG. 1, there is shown a single filter paper sheet, designated 1 and, at a specific location on the periphery, formed with a protruding tongue 2. The blade consists of the usual material used for filter paper and has a circular shape.

I fig. 2 er der vist et lignende filterpapirblad 3, der på et bestemt sted på periferien er forsynet med en indskæring 4.In FIG. 2, a similar filter paper sheet 3 is shown which is provided with a notch 4 at a certain point on the periphery.

10 Tungen 2 henholdsvis indskæringen 4 er i bredden med fordel ca. tommelfingerbred og har i øvrigt ingen indflydelse på filterets funktion.Advantageously, tongue 2 and notch 4, respectively, are approx. thumb width and otherwise has no influence on the function of the filter.

Den i fig. 3 viste stabel, der som helhed er betegnet med 5, består af et antal filterpapirblade, f.eks. 50 15 eller 100, der ligger tæt oven på hinanden. Vekselvis er et filterblad 1 med tunge 2 (fig. 1) og et filter-papirblad 3 stablet på hinanden. Til tydeliggørelse er der i fig. 3a vist et forstørret eksploderet udsnit af stablen fra fig. 3. Det vil forstås, at de enkelte 20 filterpapirblade 1 og 3 i virkeligheden ligger tæt oven på hinanden og almindeligvis klæber temmelig kraftigt til hinanden.The FIG. 3 as a whole denoted by 5 consists of a number of filter paper sheets, e.g. 50 15 or 100 which are close to one another. Alternatively, a filter sheet 1 with tongue 2 (Fig. 1) and a filter paper sheet 3 are stacked on each other. For clarification, FIG. 3a shows an enlarged exploded section of the stack of FIG. 3. It will be appreciated that the individual 20 filter paper sheets 1 and 3 are in fact close to one another and generally adhere fairly strongly to each other.

I en på denne måde sammensat stabel har de enkelte blade vekselvis forskellig kontur, hvilket i betydelig grad 25 letter løsningen og fjernelsen af det øverste blad i stablen, uden at der kræves yderligere omkostninger ved stabeldannelsen.In a stack made up in this way, the individual blades have different contours, which significantly facilitates the dissolution and removal of the upper blade in the stack without additional costs of stacking.

Claims

DK 163355 B 4 Stack of filter paper blades (1, 3) with substantially circular circumference, characterized in that immediately adjacent filter blades (1, 3) 5 have different shapes in the stack (5), blades (1) having a protruding tongue (2) and leaves (3) having a circumferential cut (4) are arranged alternately in the stack (5).